I am unironically grateful that Paul Christiano at one point said "slow takeoff" meant "world GDP doubles over a four-year period before it doubles over a one-year period". If Christiano had not gotten that concrete, none of his followers would have any anchor to understand that the present-day world did not look like Christiano's model. They would feel like they still liked Christiano's vibes, and would just interpret the current world to match those vibes. I think it's been a huge problem that Christiano overwhelmingly overestimated the intelligence and sanity of the people who cheered him on; that he did not have the ability to detect the extent to which they were not on the same page with him, and were just cheering on his cheerful prestigious vibe; did not consider this much of an important failure mode worth a lot of his effort to try to correct; and did not have the unusual expository talent that would have been required to correct it. None of the EAs ever understood what Paul Christiano was visualizing as his world, because to understand it you would need to (1) corner Christiano for a 4-hour conversation and (2) understand the correct sequence of questions to ask, in order to get him down to a level concrete enough to say the things that EAs would have found very surprising.